ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Apr 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
General Kenneth Nichols and the Manhattan Project
Nichols
The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.
As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”
Technical Session
Tuesday, October 5, 2021|10:40AM–12:20PM EDT
Session Chair:
Adam Nelson (ANL)
Session Organizer:
Jeffery D. Densmore (Naval Nuclear Laboratory)
Student Producer:
Johnny Klemes (NC State Univ.)
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Algorithm for Free Gas Elastic Scattering Without Rejection Sampling
10:40–11:05AM EDT
Elliott Biondo (ORNL), Vladimir Sobes (Univ. of Tenn., Knoxville), Andrew Holcomb (ORNL), Steven Hamilton (ORNL), Thomas Evans (ORNL)
Paper
Conditional Point Sampling Implementation for the GPU
11:05–11:30AM EDT
Luke J. Kersting (Sandia), Aaron Olson (Sandia), Kerry Bossler (Sandia)
Efficient Scoring Algorithm for Local Differential Operator Tallies in Large Models
11:30–11:55AM EDT
David P. Griesheimer (Naval Nuclear Laboratory), Gabriel Kooreman (Naval Nuclear Laboratory)
Probability Distribution Functions of the Number of Scattering Collisions in Electron Slowing Down
11:55AM–12:20PM EDT
Brian C. Franke (Sandia), Anil K. Prinja (Univ. of New Mexico)
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